Although the relationship is not clear, the proximity of the pyramid complex of Khentkaus to that of king Menkaure has led to the conjecture that she may have been his daughter.

[6] Furthermore, her depiction on this doorway also gives her the full trappings of kingship, including the false beard of the king.

This depiction and the title given have led some Egyptologists to suggest that she reigned as king near the end of the fourth dynasty.

Khentkaus may have been married to king Userkaf and may have been the mother of Sahure and Neferirkare Kakai.

[7][8] Egyptologist Miroslav Verner has stated that it is more likely, however, that Sahure was a son of Userkaf and his wife Neferhetepes.

In the 1930s Selim Hassan proposed that Khentkaus was a daughter of Menkaure, and that she was married first to Shepseskaf and later to Userkaf.

Ludwig Borchardt suggested that Shepseskaf was a commoner who married the king's daughter, Khentkaus.

Bernhard Grdseloff proposed that Shepseskaf and Khentkaus were the son and daughter of Menkaure, and that Userkaf was a prince from a collateral branch of the royal family who came to the throne when he married the royal widow and mother of the heirs to the throne, Khentkaus.

Hartwig Altenmüller suggested that Khentkaus was none other than the lady, Rededjet, mentioned in the Westcar Papyrus.

Vivienne Callender asserted that since the name of Khentkaus did not appear in a cartouche she never ruled Egypt.

In front of the temple a small structure referred to as the "washing tent" of Khentkaus was discovered.

[5] The debris filling this chamber contained many fragments of stone vessels, potsherds, and flint instruments.

[5] The floor is the opening of a limestone drain which runs downward under the ground for a distance of 7–20 m., emptying into a large, rectangular basin.

[16] The drain is covered by arched sections of the same material, the whole forming an almost circular stone pipe.

Although by no means the oldest subterranean water-channel known in Egyptian funerary architecture, according to Hassan, it is the earliest of this particular type and construction.

[16] The valley temples of Khentkaus and Menkaure were both partially constructed of mud-brick and finished with white limestone and alabaster.